Improvement in brick-machines



DANIEL HEss.

Improvement in Brick Machines.

Patented Dec. 12,1871.

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PATENT DANIEL HESS, OF DES MOINES, IOWA.

IMPROVEMENT IN BRICK-MACHINES.

Specication forming part of Letters Patent No. 121,871, dated December 12, 1871.

To all whom it may concern:

Be it known that I, DANIEL HEss, of Des Moines, Iowa, have invented certain Improvements in Brick Molding-and-Pressing Machines, of which the following is a specication:

The nature of my invention consists in the arrangement for pressing the clay (in the molds made in a revolving wheel or table) simultaneously on the long edges vertically, from below upward and from above downward, by means of ixed inclined planes, diversified below by level portions to effect the planing off, filling the molds, and expelling the formed brick, when molded, mechanically by the revolution of the table and pressing devices.

The accompanying drawing illustrates the general construction of the machine and its operation.

Figure 1 is a vertical section to show its adaptation for the application of steam-power applied to a pulley, r, and strap-connection between pulleys a: and t to drive the shafts and pinions L K, which revolve the table H and top T by the cogs shown under the same. 1f it is desirable to apply horse-power to a sweep or beam on the top of the center shaft c these cogs and gears can be dispensed With. Fig. 2 shows the circular form: H, the table and upper pressing devices; Y y, the upper face of segment or iiange U, to the under side of which the upper inclined plane u is affixed. The side posts are shown by A A and 9, 10, 11, 12, 13, and 14. Fig. 8 is a vertical view, to show the frame-work and top combined. 12 and 14 show two of the supports, to which the conic rollers N are connected in bearings with their shafts in the central hub R, the pinions M fitting into a circle of cogs on the crown of the cap or inclined top T. Fig. 4 shows the top and three rollers to radial pieces Q from side posts 11, 12, and 14; flange U, hopper H0, and molds Z seen outside of top T, as also the still more enlarged base D of the machine. Figs. 5 and 6 illustrate the relative position of the pressing devices, molds, &c., caused by the inclined planes and level spaces, over which they are made to travel in each revolution ofthe wheel or table H. Fig. 7 shows the construction ofthe pressing devices, which may be somewhat modied in actual use; but these show the operation they are destined to perform.

It is not deemed necessary to enter upon a minute detailed description of the various parts, as

they are readily understood by any mechanic of ordinary capacity.

The machine may have a circular base, D, as shown, and connected by suitable frame-work with the upper segment U and top T and support for the hopper H0, so that the wheel or table H, with a single or double set of molds, Z, near to and around the outer edge, will revolve under said hopper, from which the molds are filled by the prepared clay, scraped down from the top T by scraper S, after having been subjected to the rollers N on the inclined top of the machine. The upper series of pressing devices Y, Fig. 7, has a pressing-head, which fits into the top of the mold, with a pulley-wheel, y, over it. The stem is elbowcd or elongated, and rests upon a spring-rod, e, or its equivalent, to raise it out of the molds when released from contact with the upper inclined plane fu. The end of this stem is fixed to a vertical pivot passing through the table H, in which it turns, or is made to turn the head y forward into the mold by means of an arm, g, connected with the said pivot under the table or wheel H, which arm is brought in conta-ct with an upright post, p, below the table, aiiixed to the base D ofthe machine. In order to turn the head y away or back after being raised by the spring e, an arm, f, projects from a post, 12, and causes thc head and its connections to turn on the pivot out ofthe way ofthe molds, successively, as they are brought to the several points of action in each revolution of the wheel. On the base D there is a circular track or cam-way, E, over which the lower pressing devices W are made to travel, having pulley-wheels ic in their slotted base or bearings. These pressing-pistons WV tit the molds and are held in them, forming the bottom when resting on the lower level plane of the track, in which position the molds pass under the hopper for being iilled with the prepared clay, and when filled and carried forward, by the motion of the wheel, from the hopper, the post p turns the head y of the upper pressing device over the mold 5 the upper pulley getting under the upper inclined plane a forces the head down in the mold from above. At the saine time the lower pressing device W is caused to rise up in the mold by coming onto the lower inclined plane F, which thus gives a counter-pressure from beneath. The clay in the mold is thus pressed on the long and narrow edge of the molded brick, from above downward and from beneath upward, against the reraised the molded brick to the gaugevlevel 1' c ot' the track E and moves now on :1 level plane, ee,

so as to bring or carry the brick under a planer or device, K, for shaving ott :my clay that may be in excess in the molded mass, giving each its properwidth, the thickness and length being tashioned by the mold. This is to guard against :my inequality of clay within the mold, so as to secure auniform size of the desired dimensions. \\'hen thus passed under the planer and trimmed the stem \V again rises, by coming on an inclined plane again, until it pushes the brick out clear from the mold, to be removed by hand or otherwise. (An endless apron may be so t'ormed. and a device to turn the brick onto it-which is not shownas to carry them to any desired point.) After the lllolded brick is expelled from the mold the lower device or pulley 1c comes to the terminus of the lower inclined plane E and drops down to the level, opening the mold to its utmost capacity, for being relled. To repent the operaV tion in the continuous revolution ofthe wheel or table H, each mold and duplicate pressing device is brought into the same action at the same points in like manner, delivering eight (or, when duplicated, sixteen) molded bricks to each revolution in the plan shown. Figs. 5 and are designed to show the relative position ot' the parts brought into action in each revolution as they are being carried forward from point to point, in connection with the several inclined planes u and E e e.

The lower pressing devices W are, ot' course, so connected with the under side of the wheel or table H as to allow them to rise :md tall within the mold, and yet be held in a slotted side post, V, connected to the under side ot' the wheel, so as to carry them with the table or wheel. ln

place of the post Y shown, any hanger or equiv aient device may be employed for that purpose.

l l 1 l l l 1 l l The general construction and operation of my machine is thus shown and described. ()n a large working machine I may have cause to make a t'ew slight alterations in the rise ofthe inclined planes and positions of the planer, hopper, and relative parts to secure perfect size and uniformity, but substantially on the same plan of arrangement in the upper and lower pressing devices.

I am aware that revolving molds are not new in themselves; but I am not aware of any machine so constructed as to give a Vertical pressure on the two long edges of the clay within the mold at the same time, and to trim the same and expel it from the mold, for being reillcd, operated substantially in the manner herein speciied. T heret'ore,

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In combination with the posts A and Slot' the maclline, the hopper H0 with its flange h, when placed under the eonic or inclined top T and over the revolving table II, in the manner shown, and for the purpose described.

2.. The revolvingtop'l, constructed as described, in combination with the cogged gear on the same, the pinions M :md conic rollers N with their bearings in the hub It, on cross-piece I3, and bearings O l S with the scraper S, all arranged to operate substantially as described.

The elbowed pressing-leverY, with its shouldered pressingblock and pulley-head y, connected by a pivot-post with a curved arm, g, under the table II, in combination with the spring-rod e, post p, :md arm j', to operate the same in their revolution, in the manner and for the purpose set forth.

4. The pressing device W, with its slotted base and pulley u, in combination with the iixed slotted guide-post V and headed bolt r, all ar anged and operated in the manner and for the purpose specitied.

DANIEL IIESS.

Witnesses.

HovT SHERMAN, I. M. UAsoDv. (2 

